User's Manual

NDA-24300 CHAPTER 4
Page 263
Issue 1
UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE
1.3.4 Power Supply Unit Replacement Procedure
ATTENTION
Contents
Static Sensitive
Handling
Precautions Required
• CPU System
Changeover
Refer to Section 12.1.2
in Chapter 6.
Cable to be disconnected from OUTPWR
CPU #0: 6P-(4P-3P) PWR CA-A
CPU #1: 6P-(4P-3P) PWR CA-B
START
Set the mode of the PWR UNIT (PZ-PW92)
to be replaced into STBY mode.
On the EMA (PH-PC40) card, set EMA SUP
switch UP.
Turn OFF the SW key on the PWR UNIT.
Disconnect the power cables from the OUTPWR
connector and INPWR connector on the PZ-PW92.
A
Disconnect the power alarm cable from the
PALM connector on the PZ-PW92.
Cable Name to be disconnected
CPU #0: 10AL-(110) FLT CA
CPU #1: 10AL-(130) FLT CA
Cable to be disconnected from INPWR
CPU #0: 4P-2P PWR CA-A
CPU #1: 4P-2P PWR CA-B
PWR (PZ-PW92)
FRONT VIEW
SW
ON
OFF
PALM
-48V
ON
ALM
OUTPWR
INPWR